Do you really think you’re a rap genius? Do your friends call you a rap nerd? Well, for those of you that take pride in those labels (or those who just love Nas and Hov) really need to check out these Complex lists. The creative minds at Mark Ecko’s publication racked their brains and resources to compile a 100 rare facts about hip-hop’s most celebrated artists. Some of these gems you may know about, but there’s plenty in each list to make you say “wow.” Trust me.

50 Things You Didn’t Know About Nas
He was offered and declined an audition for the lead in Save The Last Dance.
He did Illmatic’s “N.Y. State of Mind” in one take.
Kelis’ father was also a jazz musician who played in the same bands as Nas’ father.
The original version of “Ether” was produced by Swizz Beatz.I Am was supposed to have skits, but before Nas could record them someone walked into the studio with a bootleg copy of the album.

Complex’s 50 Things You Didn’t Know About Jay-ZReasonable Doubt was originally titled Heir to the Throne.
He practiced saying “opium” for an hour to perfect his delivery on Reasonable Doubt’s “Regrets.”
He dissed DMX on Mic Geronimo’s “Time To Build,” even though DMX was also featured on the song.
Mary J. Blige got on “Can’t Knock The Hustle” as a favor to Dame Dash, whom she had previously “dated.”